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Biology, 19.09.2019 21:00 erbnichole

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. james waters three flowers with different amounts of salt water. a fourth flowers receives regular water. the flowers are placed on the same window sill for sunlight. after a four-week period, the height of the plant is measured. identify the variables in this experiment. *
3 points
amount of salt water height of plant sunlight
independent variable
constant variable
dependent variable
independent variable
constant variable
dependent variable
8. place the steps of the scientific method in the correct order. *
4 points
test your hypothesis by conducting a experiment. ask a question and develop a hypothesis. draw conclusions. analyze your data.
step 1
step 2
step 3
step 4
step 1
step 2
step 3
step 4
9. a scientist observing the behaviors of an animal is making a *
1 point
quantitative observation
qualitative observation
inference
hypothesis
10. which of the following questions is most testable through scientific experimentation? *
1 point
which flower looks more attractive in a vase: daisies or roses?
which flower has a better smell: daisies or roses?
which type of flowers grow better in sunlight: daisies or roses?
11. you are tracking the temperature each day for a week and observe that today's temperature reached a high of 85°f. which of the following correctly describes your data? *
1 point
the data is a qualitative observation.
the data is a classification.
the data is a prediction.
that data is a quantitative observation.
12. what is the volume of liquid in the graduated cylinder? *
1 point
captionless image
29 ml
25 ml
24 ml
15 ml
13. sam is conducting a study to determine if people prefer sprinkles on their ice cream. he decides to sell vanilla ice cream without sprinkles and vanilla ice cream with sprinkles. both ice creams are sold at the same price. at the end of the day, sam sold more vanilla ice cream with sprinkles. he concluded that people prefer ice cream with sprinkles. this is an example of *
1 point
cultural bias
experimental bias
skepticism
a controlled experiment
14. you walk into your room and see that your cat is sitting on your desk and your cup of water has fallen to the floor. which of the following is an inference you can make based on this observation? *
1 point
the cat pushed the water glass off the desk.
the cat will lick the water up from the floor.
there are pieces of broken glass on the floor.
the water has been on the floor for a long time.
15. if the trend in the graph continues through winter, what would you expect the average low temperature in juneau, alaska to be in december? *
1 point
captionless image
45°f
25°f
2°f
-5°f
16. two 8th grade students decided to race around the track at their school. one had running shoes on and the other student was wearing sandals. their running speed was compared. what is the dependent variable? *
1 point
types of shoes
age of the students
speed of the students
distance the students ran
17. experimental question: does the color of bird seed affect how much bird's will eat? which option below changes the experimental question into a hypothesis. *
1 point
if birds see brightly colored seeds, then they will eat more.
i think birds will eat more seeds.
birds will eat brightly colored seeds.
i don't think birds will eat seeds of different colors.
18. scientists use a specific unit of measure so they can communicate clearly around the world. these units are called *
1 point
global units
scientific unit of measurements
international system of units
experimental units
19. drake is comparing time people spend playing games on xbox versus playstation. in his study, individuals ages 10 - 15 are given xbox's and individuals ages 16 - 25 are given playstations. after collecting his data he observes that those using the playstation had logged more hours. drake concludes that the playstation is more popular. this is an example of *
1 point
experimental bias
skepticism
controlled experiment
a qualitative observation
20. based on the data collected in the table, which results would you expect to see for plant 8 during weeks 1 - 3? *
1 point
captionless image
week 1 = 10 cm, week 2 = 14 cm, week 3 = 16 cm
week 1 = 4 cm, week 2 = 3 cm, week 3 = 3.5 cm
week 1 = 1 cm, week 2 = 2.5 cm, week 3 = 5 cm
week 1 = 0.5 cm, week 2 = 1.5 cm, week 3 = 2 cm

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